Another couple of Sharpless2 objects 213 done in a close-up. It is apparently a mini version of the Rosette... see below. I did not see anything with my prior attempt at 214 and again here. I left the plate solve version as the primary image in case anyone wants to see the area in detail. The 10x shows 213 best.
Other versions:
Sh2 213 HA RGB 
Sh2 214 HA [Nothing There] From GalaxyMap:Berkeley 11 lies at a distance of 2100 parsecs.[[url=
http://galaxymap.org/cat/view/sharpless/213#note_1]1]
Sh 2-213 may be a very faint Stromgren sphere around a B4 class star in the cluster Berkeley 11.[[url=
http://galaxymap.org/cat/view/sharpless/213#note_2]2]
Stromgren Sphere From
Wikipedia: In
theoretical astrophysics, there can be a sphere of
ionized hydrogen (H II) around a young star of the [url=mw-redirect=https://en.wikipedia.org/wiki/Spectral_class]spectral classes[/url]
O or B. The theory was derived by
Bengt Strömgren in 1937 and later named
Strömgren sphere after him. The
Rosette Nebula is the most prominent example of this type of
emission nebula from the
H II-regions. 1.
^ Yadav, R. K. S. & Sagar, Ram (2002). "A deep UBVRI CCD photometric study of the open clusters Tr1 and Be 11", Monthly Notices of the Royal Astronomical Society, Vol. 337, 133-146. [[url=
http://adsabs.harvard.edu/abs/2002MNRAS.337..133Y]2002MNRAS.337..133Y] 2.
^ Jackson, P. D., Fitzgerald, M. P., & Moffat, A. F. J. (1980). "Photoelectric UBV observations of the open cluster Berkeley 11", Astronomy and Astrophysics Supplement Series, Vol. 41, 211-214. [[url=
http://adsabs.harvard.edu/abs/1980A%26AS...41..211J]1980A&AS...41..211J]
Sh 2-214 Beyond a short string of red pixels (which could be an artifact of the photographic plate) there is no visible nebulosity in this image. Avedisova places this object in star formation region
SFR 157.59-3.91 along with the young T Tauri star
IRAS 04172+4411. Beyond this association, there is essentially nothing in the scientific literature on this region.
GENERAL NOTE ON SHARPLESS2 OBJECTS>>>>>>>>>>>>>There are 313 Sh2 objects. All now imaged.
This is my collection:
Sharpless2Wide-Angle Hydrogen Alpha Nikon Image Sh2 79-171Please note there is also a Sharpless2 Group with now more than 2700 examples.
Sharpless2 GroupOther useful links include:
Gary Imm's CollectionGalaxyMap's CollectionThe Sharpless CatalogThe MDW H-alpha Sky SurveyReiner Vogel's detailed observing catalogHope you enjoy these obscure but interesting objects...
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